I own a G19.3, and am well acquainted with how it fires. It's all stock. I also own a G23.3, for which I bought a Lone Wolf 9mm Conversion barrel. The G23.3 handles everything about the 9mm ammo better than the G19.3. Smoother, less recoil, more accurate. I was just amazed at how noticeable it is. I just did the technical comparison between G19.3 and G23.3 - they appear to be identical.